"Abbreviated plan" means a plan for small sites to implement temporary best management practices (BMPs) to control pollution generated during the construction phase, primarily erosion, sediment, and post-construction runoff.

"Agricultural activities" means the normal actions associated with the production of crops such as: plowing, cultivating, minor drainage, and harvesting, and/or raising or keeping of livestock, including operation and maintenance of farm and stock ponds, drainage ditches, irrigation systems, and normal operation, maintenance, and repair of existing serviceable agricultural structures, facilities, or improved areas. The term "agricultural activities" as used within this Title does not include the practice of aquaculture. Forest practices regulated under Chapter 76.09 RCW and Title 222 WAC are not included in this definition.

"Alleyway" means a narrow passageway intended for vehicular traffic to serve as rear access to lots or buildings.

"BMP" means best management practice.

"Clearing" means the destruction and/or removal of vegetation by manual, mechanical, or chemical methods.

"County" means the Pierce County Executive or designee; also Pierce County, its duly authorized representatives, and the jurisdictional boundaries of Pierce County.

"Department" means the Pierce County Department of Planning and Public Works, unless explicitly referenced otherwise.

"Development" means any man-made change to improved or unimproved real property including but not limited to construction of buildings or other structures, placement of manufactured home/mobile home, mining, dredging, logging, clearing, filling, grading, paving, excavation, drilling operations, or the subdivision, short plat, and large lot division of property.

"Director" shall mean the Director of the Planning and Public Works Department or his/her designee, unless explicitly referenced otherwise.

"Grading" means any operation involving excavation, displacement, cutting or filling of material that alters the elevation of the land's surface.

"International Building Code (IBC)" means the most recent version of the International Building Code adopted by Pierce County.

"Logging" means the harvesting or removal of timber. Logging does not include the removal of stumps or under story vegetation.

"Manual" means the Pierce County Stormwater Management and Site Development Manual including all amendments, corrections, and changes made through subsequent County ordinance.

"New development" means the following activities: land disturbing activities; external structural development including construction, installation, or expansion of a building or other structure; creation of impervious surfaces; class IV-general forest practices that are conversions from timber land to other uses; and subdivision and short subdivision of land as defined in RCW 58.17.020. All other forest practices and commercial agriculture are not considered new development.

"Off-site" means any area lying upstream of the site that drains onto the site, and any area lying downstream of the site onto which the site drains.

"On-site" means the entire property including the proposed development.

"Principal" means an individual, person, or entity primarily liable for an obligation. In the case of a limited liability corporation (LLC), it means the individual or person that has the authority to make financial commitments and/or obligations for the LLC.

"Private road" means a roadway facility in private ownership providing private access and used for travel of vehicles by the owner(s) or those having express or implied permission from the owner(s), but not by other persons.

"Project" means the proposed action which requires a site development permit.

"Redevelopment" means, on an existing developed site, the creation or addition of impervious surfaces, external structural development, including construction, installation, or expansion of a building or other structure, and/or replacement of impervious surface that is not part of a routine maintenance activity; and land disturbing activities associated with structural or impervious redevelopment.

"Regulations" means this Title plus requirements contained in the Pierce County Stormwater Management and Site Development Manual.

"Short plat or short subdivision" means as defined in the Pierce County Subdivision Code, Title 18F PCC or most recent version thereof.

"Site" means any parcel or combination of contiguous parcels where grading, filling, clearing, or creation of an impervious surface is proposed, and which may be controlled by more than one property owner.

"Site development permit" means a permit issued by Pierce County giving an applicant permission to: perform land disturbing activity; remove vegetation; construct roads, shared accesses, alleyways, driveways, parking areas, impervious surfaces or other hard surfaces; perform grading and/or clearing; and construct stormwater facilities.

"Stormwater Drainage System" means constructed and natural features which function together as a system to collect, convey, channel, hold, inhibit, retain, detain, infiltrate, divert, treat or filter stormwater.

"Technical equivalency" or "technical deviation" means an alternative design option requested by an applicant or the applicant's Engineer which deviates from the stipulated technical design standards or criteria found in the Pierce County Stormwater Management and Site Development Manual.